Tempering furnace for tempered glass with multi-zone temperature control

Abstract

This invention discloses a multi-zone temperature-controlled uniform tempering furnace for tempered glass, relating to the field of tempered glass production and processing technology. The furnace includes a furnace cavity base and a protective mechanism. A furnace cavity body is mounted on the furnace cavity base, and the furnace cavity body consists of three independent furnace cavity components. Each furnace cavity component has a door panel mechanism at its inlet and outlet. Each furnace cavity component includes a furnace shell mechanism, which includes a shell. The shell is longitudinally divided into upper, middle, and lower layers. A first heating mechanism is provided in the middle layer of the shell. The first heating mechanism includes a first panel fixed to the shell, and first infrared quartz heating tubes are uniformly and evenly fixed to the surface of the first panel. A slide rail assembly is mounted in the center of the surface of the first panel. Airflow mechanisms are provided above and below the first heating mechanism. Second heating mechanisms are provided in both the upper and lower layers of the shell. This process controls the temperature deviation in each zone within the furnace cavity components, improving the uniformity of homogenization in different parts of the glass.

Description

Technical Field

[0001] This invention relates to the field of tempered glass production and processing technology, specifically to a tempered glass multi-zone temperature-controlled uniform tempering furnace. Background Technology

[0002] Tempered glass, with its superior properties such as high strength, impact resistance, and the absence of sharp edges after breakage, has been widely used in various fields including building curtain walls, automotive windows, rail transportation, and electronic equipment. As downstream industries continue to raise their requirements for the size, thickness, and performance stability of tempered glass, more stringent standards are being imposed on the homogenization process of tempered glass.

[0003] Homogenization is a key process that involves reheating, heat preservation, and slow cooling of tempered glass to induce a phase change in the non-glassy impurities remaining inside the glass, thereby eliminating the potential risk of spontaneous breakage. Its core technology relies on the temperature control precision and temperature uniformity of the tempering furnace.

[0004] Patent CN105565650A discloses a tempered glass homogenizing furnace, comprising a homogenizing furnace body, a fan, an air supply pipe, a temperature display device, a temperature sensor, heating elements, a slide rail, a sliding door, an air outlet, and an inner cavity. The inner cavity is located inside the homogenizing furnace body, with heating elements arranged on its upper and lower sides. A fan is located on the left side wall of the homogenizing furnace body, connected to the air supply pipe, which in turn communicates with the inner cavity. A slide rail is located on the right side wall of the homogenizing furnace body, slidably connected to the sliding door. An air outlet is located on the lower right side of the homogenizing furnace body. The furnace has a simple structure, is easy to install and maintain, and provides uniform temperature within the furnace.

[0005] The above technical solution mainly adopts a structural design of overall heating, single airflow circulation and single-point temperature monitoring. Specifically, fixed power heating tubes are arranged on the upper and lower sides of the furnace cavity, and a unidirectional airflow convection is formed by a single-sided fan and the air outlet. Only a single temperature sensor is set at the bottom of the inner cavity to feed back the air temperature inside the furnace. The furnace door adopts a single-sided sliding or double-opening structure.

[0006] However, existing technologies have revealed significant limitations in temperature control modes in practical applications. Most existing tempering furnaces are designed as a single heating unit without separate temperature control zones. Due to differences in heat dissipation rates and uneven airflow coverage between the furnace edge and center, and between the upper and lower parts, a temperature difference of 5-8°C is easily formed. This results in inconsistent heating of different areas of the glass, which not only affects the homogenization process but also increases the risk of spontaneous breakage during subsequent use, especially for large-size and thick tempered glass. In summary, existing tempered glass homogenizing furnaces can no longer meet the current industry's production needs for high-quality, multi-specification tempered glass in terms of temperature uniformity and temperature control accuracy. There is an urgent need to develop a tempered glass furnace with multi-zone temperature control and uniformity, which will be the key to solving the industry's pain points and promoting the upgrading of tempered glass processing technology. Summary of the Invention

[0007] The purpose of this invention is to provide a tempering furnace with multi-zone temperature control and uniform tempering to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a tempered glass multi-zone temperature-controlled uniform tempering furnace, comprising a furnace cavity base and a protective mechanism for carrying the glass; The furnace cavity base is equipped with a furnace cavity body, which is composed of three independent furnace cavity components arranged horizontally. The inlet and outlet of each furnace cavity component are equipped with a door panel mechanism. The furnace cavity assembly includes a furnace shell mechanism, which includes a shell, and the shell is longitudinally divided into upper, middle and lower layers. The middle layer of the housing is symmetrically provided with a first heating mechanism on both sides. The first heating mechanism includes a first panel fixed to the housing. The surface of the first panel is uniformly and equidistantly connected with an adjustable power first infrared quartz heating tube. A slide rail assembly for the sliding of the protection mechanism is mounted on the center of the surface of the first panel. The first heating mechanism is symmetrically provided with airflow mechanisms on its upper and lower sides; The upper wall of the upper layer and the lower wall of the lower layer of the shell are both provided with symmetrical second heating mechanisms.

[0009] As a preferred embodiment of the present invention, the middle layer of the housing is provided with air holes for assembling the airflow mechanism on both the upper and lower sides; the upper inner wall of the upper layer of the housing and the lower inner wall of the lower layer of the housing are provided with grooves.

[0010] As a preferred embodiment of the present invention, the slide rail assembly includes a frame-shaped rail frame, and a connecting block is fixedly connected between the rail frame and the first panel; The first panel has adjustment grooves embedded at the top and bottom of the center of its surface.

[0011] The airflow mechanism includes a first fan with fixed insertion air holes, and a second fan with fixed insertion air holes is provided on the upper and lower sides of the first fan respectively. The air outlet of the first fan is fixedly connected to an air duct with an inwardly recessed air outlet end. A fan shaft is movably inserted through the air outlet end of the air duct. A first rotating fan adapted to the air outlet end of the air duct is fixedly sleeved on a section of the fan shaft inside the air duct. An outer shaft is slidably inserted into the end of the fan shaft facing the first heating mechanism.

[0012] The first panel has two adjustment slots symmetrically provided with air guiding mechanisms. The air guiding mechanism includes an air duct. External teeth are fixedly connected at equal intervals on the outer side of the end of the air duct near the slide rail assembly. A second rotating fan is fixedly embedded inside the air duct, and the central axis of the second rotating fan corresponds to the outer axis of the airflow mechanism. A cylindrical ring is movably sleeved on the outer side of the end of the air duct away from the slide rail assembly, and a rod with a sliding insertion adjustment groove is fixedly connected to the side of the cylindrical ring.

[0013] As a preferred embodiment of the present invention, the second heating mechanism includes a second panel adapted to the housing, a second infrared quartz heating tube with adjustable power is fixedly embedded on the surface of the second panel facing the middle layer of the housing, and a power regulator adapted to the embedded groove is fixedly connected to the surface of the second panel away from the middle layer of the housing. The second heating mechanism includes a controller fixed to the outer end of the housing, and a control line passing through the end wall of the housing is fixedly connected between the controller and the power regulator; The second heating mechanism includes cylinders fixed to the four corners of the outer end of the housing. The output end of the cylinder passes through the end wall of the housing and is fixed to the four corners of the second panel.

[0014] As a preferred embodiment of the present invention, the door panel mechanism includes a door frame installed at the housing port, and a pair of door panels are vertically slidably installed inside the door frame; The two adjacent door panels are provided with door grooves on both sides that are adapted to the end of the connecting rail frame.

[0015] As a preferred technical solution of the present invention, the protection mechanism includes two cross-shaped protection frames, one above the other. Fasteners are screwed together at the ends of the two protection frames that are parallel to their sliding direction. Rail grooves adapted to engage the rail frame are opened at the ends of the two protection frames that are perpendicular to their sliding direction. A central hole is provided through the center of the surface of the protective frame. A clamping cylinder is inserted into the central hole through a bearing. A clamping foot is fixedly connected at equal and even intervals at the end of the clamping cylinder closest to the glass. A toothed groove adapted to meshing external teeth is provided at equal and even intervals on the outer side of the end of the clamping cylinder away from the glass. A spiral blade is fixedly connected at equal and even intervals on the inner wall of the clamping cylinder.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) A tempered glass multi-zone temperature control uniform tempering furnace, wherein the upper and lower layers of the shell are controlled by a second heating mechanism and the middle layer of the shell is controlled by a first heating mechanism, thereby forming independent zone temperature control. Multiple independent temperature control units are divided in the furnace cavity assembly, and the temperature can be precisely adjusted according to the needs, solving the problem of large temperature difference between the edge and center of the furnace cavity assembly, controlling the temperature deviation of each area in the furnace cavity assembly, and improving the consistency of the homogenization degree of each part of the glass.

[0017] (2) A tempered glass multi-zone temperature-controlled uniform tempering furnace, in which three independent furnace chamber components are sequentially temperature-controlled to form a preheating zone, a main heating zone and a heat preservation zone, constructing a complete homogenization process of gradient heating, full heating and constant temperature consolidation, which conforms to the process logic of secondary heating phase change of tempered glass. The preheating zone avoids the glass from cracking due to sudden heating, the main heating zone promotes the full phase change of internal non-glass impurities, and the heat preservation zone consolidates the homogenization effect. The three zones work together to greatly reduce the risk of spontaneous breakage in subsequent use of the glass and improve the safety of glass processing.

[0018] (3) A tempered glass multi-zone temperature control uniform tempering furnace, which completes the positioning of the protection mechanism through the meshing of the tooth groove and the outer tooth, so that the glass is accurately aligned with the processing center of the shell, controls the positioning error, and the glass is processed at the processing center of the shell, which can uniformly receive the heating energy and directional airflow of each area, avoids uneven local heating caused by position offset, ensures that the homogenization degree of each part of the glass is consistent, and greatly improves the product performance stability and qualification rate.

[0019] (4) A tempered glass multi-zone temperature control uniform tempering furnace, through the design of the spiral blades inside the clamping cylinder, further drives the airflow to blow onto the glass surface. By optimizing the airflow guidance path, the dead angles of airflow in areas such as furnace corners and glass gaps are eliminated, allowing the hot airflow to uniformly cover the glass surface, promoting the full phase transformation of non-glass impurities inside the glass, effectively reducing the spontaneous breakage rate of tempered glass and improving the product qualification rate.

[0020] (5) A tempering furnace with multi-zone temperature control and uniform tempering of tempered glass, in which each surface and corner of the glass can be evenly contacted with the heat and directional airflow in the furnace, eliminating the local heating dead zone caused by a single orientation, further reducing the temperature deviation of each area of ​​the glass in the furnace, and promoting the full phase transformation of non-glass impurities inside the glass through uniform rotation, avoiding the risk of spontaneous breakage due to incomplete transformation of local impurities, reducing the spontaneous breakage rate of tempered glass, and significantly improving the performance stability and service life of the product.

[0021] (6) A tempered glass multi-zone temperature control uniform tempering furnace, which uses a protective mechanism as a special outer frame structure to carry the glass. The two protective frames of the protective mechanism form all-round protection for the glass during the rotation process, and the position of the glass is controlled by the clamping feet to avoid the glass from shifting or colliding due to the centrifugal force of rotation or the impact of airflow, thereby preventing production accidents such as glass scratches and breakage, reducing production losses and saving processing costs.

[0022] (7) A tempered glass multi-zone temperature control uniform tempering furnace, which increases the spacing to avoid overheating when processing thin glass and reduces the spacing to enhance heat conduction when processing thick glass. The transmission linkage between the second heating mechanism and the protection mechanism is adjustable. Temperature, spacing and transmission speed form a coordinated adjustment mechanism to further accurately match the heating requirements of glass of different thicknesses and broaden the applicability of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structural components of the present invention; Figure 3 This is a schematic diagram showing the location of the protection mechanism of the present invention; Figure 4 This is a schematic diagram showing the position of the first heating mechanism of the present invention; Figure 5 This is a schematic diagram of the furnace shell mechanism of the present invention; Figure 6 This is a schematic diagram of the airflow mechanism of the present invention; Figure 7 This is a schematic diagram of the first heating mechanism of the present invention; Figure 8 This is a schematic diagram of the air guide mechanism of the present invention; Figure 9 This is a schematic diagram of the second heating mechanism of the present invention; Figure 10 This is a schematic diagram showing the position of the second heating mechanism of the present invention; Figure 11 This is a schematic diagram of the door panel mechanism of the present invention; Figure 12 For the present invention Figure 11 Enlarged view of point A; Figure 13 This is a schematic diagram showing the location of the air guide mechanism of the present invention; Figure 14 This is a schematic diagram of the protection mechanism of the present invention; Figure 15 This is a schematic diagram of the spiral blade of the present invention.

[0024] In the diagram: 1. Furnace cavity base; 2. Furnace shell mechanism; 201. Shell; 202. Air vent; 203. Groove; 3. First heating mechanism; 301. First panel; 302. First infrared quartz heating tube; 303. Rail frame; 304. Connecting block; 305. Adjustment groove; 4. Airflow mechanism; 401. First fan; 402. Second fan; 403. Air duct; 404. Fan shaft; 405. First rotating fan; 406. Outer shaft; 5. Air guide mechanism; 501. Air duct; 502. External gear; 503. Second rotating fan. 504. Fan; 505. Cylindrical ring; 6. Insert rod; 7. Second heating mechanism; 601. Second panel; 602. Second infrared quartz heating tube; 603. Power regulator; 604. Controller; 605. Control line; 606. Cylinder; 7. Door panel mechanism; 701. Door frame; 702. Door panel; 703. Door groove; 8. Protection mechanism; 801. Protective frame; 802. Fastener; 803. Rail groove; 804. Center hole; 805. Clamping cylinder; 806. Clamping foot; 807. Tooth groove; 808. Spiral blade. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 A tempered glass multi-zone temperature-controlled uniform tempering furnace includes a furnace cavity base 1 and a protective mechanism 8 for carrying the glass. The furnace cavity base 1 is equipped with the furnace cavity body, which is composed of three independent furnace cavity components arranged horizontally. The inlet and outlet of the furnace cavity components are equipped with door panel mechanisms 7. The furnace cavity assembly includes a furnace shell mechanism 2, which includes a shell 201. The shell 201 is longitudinally divided into three layers: upper, middle, and lower, corresponding to the heat requirements of the upper surface, edge, and lower surface of the glass, thus avoiding temperature differences. The middle layer of the housing 201 is symmetrically provided with a first heating mechanism 3 on both sides. The first heating mechanism 3 includes a first panel 301 fixed to the housing 201. The surface of the first panel 301 is uniformly and evenly fixedly connected with an adjustable power first infrared quartz heating tube 302. A slide rail assembly for the sliding of the protection mechanism 8 is mounted on the middle of the surface of the first panel 301. The first heating mechanism 3 is symmetrically provided with airflow mechanisms 4 on its upper and lower sides; The upper wall and lower wall of the housing 201 are both provided with symmetrical second heating mechanisms 6.

[0027] Please see Figure 5 The middle layer of the housing 201 has air holes 202 through the upper and lower sides for assembling the airflow mechanism 4; the upper inner wall of the upper layer and the lower inner wall of the lower layer of the housing 201 are both provided with grooves 203.

[0028] Please see Figure 4 , Figure 6 , Figure 7 , Figure 8 The slide rail assembly includes a frame-shaped rail frame 303, and a connecting block 304 is fixedly connected between the rail frame 303 and the first panel 301. The end of the connecting block 304 is retracted inside the rail frame 303 and will not obstruct the sliding of the protection mechanism 8. Adjustment grooves 305 are respectively embedded in the upper and lower parts of the center of the surface of the first panel 301.

[0029] The airflow mechanism 4 includes a first fan 401 with a fixed insertion air hole 202, and a second fan 402 with a fixed insertion air hole 202 is provided on the upper and lower sides of the first fan 401 respectively. The air outlet of the first fan 401 is fixedly connected to the air duct 403 with the air outlet end retracted. The air outlet end of the air duct 403 is movably inserted with a fan shaft 404. A section of the fan shaft 404 inside the air duct 403 is fixedly sleeved with a first rotating fan 405 adapted to the air outlet end of the air duct 403. An outer shaft 406 is slidably inserted into the end of the fan shaft 404 facing the first heating mechanism 3.

[0030] The first panel 301 has two symmetrically arranged air guide mechanisms 5 on the two adjustment slots 305. The air guide mechanism 5 includes an air duct 501. External teeth 502 are evenly and equidistantly fixed to the outer side of the end of the air duct 501 near the slide rail assembly. A second rotating fan 503 is fixedly inserted inside the air duct 501, and the central axis of the second rotating fan 503 is correspondingly fixed to the outer shaft 406 of the airflow mechanism 4. A cylindrical ring 504 is movably sleeved on the outer side of the end of the air duct 501 away from the slide rail assembly, and a rod 505 of the sliding insertion adjustment groove 305 is fixedly connected to the side of the cylindrical ring 504.

[0031] Please see Figure 9 , Figure 10 The second heating mechanism 6 includes a second panel 601 adapted to the housing 201. An adjustable power second infrared quartz heating tube 602 is fixedly embedded on the surface of the second panel 601 facing the middle layer of the housing 201. The second infrared quartz heating tube 602 is in the shape of a planar spiral. A power regulator 603 adapted to the embedding groove 203 is fixedly connected to the surface of the second panel 601 away from the middle layer of the housing 201. The second heating mechanism 6 includes a controller 604 fixedly connected to the outer end of the housing 201, and a control line 605 passing through the end wall of the housing 201 is fixedly connected between the controller 604 and the power regulator 603. The second heating mechanism 6 includes cylinders 606 fixed to the four corners of the outer end of the housing 201. The output end of the cylinders 606 passes through the end wall of the housing 201 and is fixed to the four corners of the second panel 601. The cylinder 606 of the second heating mechanism 6 installed in the lower layer of the shell 201 is fixed to the furnace cavity base 1.

[0032] Please see Figure 11 , Figure 12 The door panel mechanism 7 includes a door frame 701 installed at the port of the housing 201, and a pair of door panels 702 are vertically slidably installed inside the door frame 701. The two door panels 702 that open outwards are respectively provided with door grooves 703 that fit the ends of the connecting rail bracket 303 through the two sides of the adjacent side; The rails 303 of the two furnace cavity components fit together within the door slot 703.

[0033] Please see Figure 13 , Figure 14 , Figure 15 The protection mechanism 8 includes two cross-shaped protection frames 801, one above the other. The ends of the two protection frames 801 parallel to their sliding direction are screwed together with fasteners 802. The ends of the two protection frames 801 perpendicular to their sliding direction are provided with rail grooves 803 that are adapted to engage the rail frame 303. A central hole 804 is provided through the center of the surface of the protective frame 801. A clamping cylinder 805 is rotatably inserted into the central hole 804 via a bearing. A clamping foot 806 is fixedly connected at equal and even intervals at the end of the clamping cylinder 805 closest to the glass. A tooth groove 807 adapted to mesh with the external tooth 502 is provided at equal and even intervals on the outer side of the end of the clamping cylinder 805 away from the glass. A spiral blade 808 is fixedly connected at equal and even intervals on the inner wall of the clamping cylinder 805. The glass is positioned between two protective frames 801 and held by clamping feet 806 on both sides; the clamping range of the protective mechanism 8 allows the glass to rotate.

[0034] The working principle of this invention is as follows: The furnace cavity body is composed of three independent furnace cavity components arranged horizontally. The furnace cavity components include a furnace shell mechanism 2, which includes a shell 201. The shell 201 is longitudinally divided into three layers: upper, middle, and lower, corresponding to the heat requirements of the upper surface, edge, and lower surface of the glass. The upper and lower layers of the shell 201 are temperature-controlled by a second heating mechanism 6, and the middle layer of the shell 201 is temperature-controlled by a first heating mechanism 3, thus forming independent zone temperature control. Multiple independent temperature control units are divided within the furnace cavity components, which can precisely adjust the temperature according to the requirements, solve the problem of large temperature difference between the edge and center of the furnace cavity components, control the temperature deviation in each area of ​​the furnace cavity components, and improve the consistency of the homogenization degree of each part of the glass.

[0035] The glass is held between two protective frames 801 of the protective mechanism 8. The two protective frames 801 are locked by fasteners 802, and the rail slot 803 is inserted into the rail frame 303 of the slide rail assembly. This allows the protective mechanism 8 to carry the glass along the slide rail assembly into the furnace cavity assembly. The three independent furnace cavity assemblies are sequentially temperature-controlled to form a preheating zone, a main heating zone, and a heat preservation zone. This constructs a complete homogeneous process of gradient heating, full heating, and constant temperature consolidation, which conforms to the process logic of the secondary heating phase change of tempered glass. The preheating zone prevents the glass from cracking due to sudden heating, the main heating zone promotes the full phase change of internal non-glass impurities, and the heat preservation zone consolidates the homogeneous effect. The three zones work together to significantly reduce the risk of spontaneous breakage of the glass in subsequent use and improve the safety of glass processing.

[0036] After the protective mechanism 8 slides along the rail frame 303 into the housing 201 via the rail groove 803, the height of the air guide mechanism 5 is adjusted by the adjustment groove 305. Then, the positioning of the protective mechanism 8 is completed by the meshing of the tooth groove 807 and the external tooth 502, so that the glass is accurately aligned with the processing center of the housing 201, controlling the positioning error. The glass is processed at the processing center position of the housing 201, which can evenly receive heating energy and directional airflow from each area, avoiding uneven local heating caused by positional deviation, ensuring that the homogenization degree of each part of the glass is consistent, and greatly improving the product performance stability and qualification rate.

[0037] During processing, the first fan 401 and the second fan 402 uniformly deliver gas into the housing 201 to form a directional airflow. The outlet of the first fan 401 is connected to the air duct 403. The airflow drives the first rotating fan 405 at the outlet of the air duct 403 to rotate, which in turn drives the fan shaft 404 to rotate. Furthermore, the connection between the outer shaft 406 and the central shaft of the second rotating fan 503 drives the air duct 501 to rotate. The first fan 401 and the second fan 402 blow the airflow into the housing 201. The rotation of the second rotating fan 503 directs the airflow towards the glass surface. The meshing of the toothed groove 807 and the outer tooth 502 drives the clamping cylinder 805 to rotate. The design of the spiral blade 808 inside the clamping cylinder 805 further drives the airflow to blow onto the glass surface. By optimizing the airflow guidance path, dead airflow areas in areas such as furnace corners and glass gaps are eliminated, allowing the hot airflow to evenly cover the glass surface. This promotes the full phase transformation of non-glass impurities inside the glass, effectively reducing the spontaneous breakage rate of tempered glass and improving the product qualification rate.

[0038] The rotation of the air duct 501 drives the external gear 502 to rotate. The meshing of the tooth groove 807 and the external gear 502 drives the clamping cylinder 805 to rotate. The glass is clamped by the clamping feet 806, and finally the glass rotates smoothly within the range limited by the protective frame 801. This allows all surfaces and corners of the glass to be evenly contacted with the heat and directional airflow in the furnace, eliminating the localized heating dead zones caused by a single orientation. The temperature deviation of different areas of the glass in the furnace is further reduced. The uniform rotation promotes the full phase transformation of non-glass impurities inside the glass, avoiding the risk of spontaneous breakage due to incomplete transformation of local impurities, reducing the spontaneous breakage rate of tempered glass, and significantly improving the product's performance stability and service life.

[0039] The protective mechanism 8 serves as a dedicated outer frame structure for carrying the glass. The two protective frames 801 of the protective mechanism 8 provide all-round protection for the glass during the rotation process. The position of the glass is controlled by the clamping feet 806 to prevent the glass from shifting or colliding due to centrifugal force or airflow impact, thus preventing production accidents such as glass scratches and breakage, reducing production losses, and saving processing costs.

[0040] The second heating mechanism 6 in both the upper and lower layers of the housing 201 adopts a movable design. The distance between the second infrared quartz heating tube 602 and the glass surface can be changed by the telescopic cylinder 606. Thus, the distance between the second heating mechanism 6 and the glass surface can be flexibly adjusted according to the glass thickness. When processing thin glass, the distance can be increased to avoid overheating, and when processing thick glass, the distance can be reduced to enhance heat conduction. The transmission linkage between the second heating mechanism 6 and the protection mechanism 8 is adjustable. Temperature, distance and transmission speed form a coordinated adjustment mechanism to further accurately match the heating requirements of glass of different thicknesses and broaden the application range of the equipment.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tempered glass multi-zone temperature-controlled uniform tempering furnace, comprising a furnace cavity base (1) and a protective mechanism (8) for carrying the glass; The furnace cavity base (1) is equipped with a furnace cavity body, characterized in that: The furnace body is composed of three independent furnace components arranged horizontally, and the inlet and outlet of each furnace component are equipped with a door panel mechanism (7). The furnace cavity assembly includes a furnace shell mechanism (2), the furnace shell mechanism (2) includes a shell (201), and the shell (201) is longitudinally divided into upper, middle and lower layers; The middle layer of the housing (201) is symmetrically provided with a first heating mechanism (3) on both sides. The first heating mechanism (3) includes a first panel (301) fixed to the housing (201). The surface of the first panel (301) is uniformly and equidistantly connected with an adjustable power first infrared quartz heating tube (302). A slide rail assembly for the sliding of the protection mechanism (8) is mounted on the middle of the surface of the first panel (301). The first heating mechanism (3) is symmetrically provided with airflow mechanisms (4) on its upper and lower sides; The upper wall and lower wall of the housing (201) are each provided with a symmetrical second heating mechanism (6).

2. The tempering furnace for tempered glass with multi-zone temperature control and uniform tempering according to claim 1, characterized in that: The middle layer of the housing (201) has air holes (202) for assembling the airflow mechanism (4) through both the upper and lower sides; the upper inner wall of the upper layer of the housing (201) and the lower inner wall of the lower layer of the housing (201) are both provided with grooves (203).

3. The tempering furnace for tempered glass with multi-zone temperature control and uniform tempering according to claim 1, characterized in that: The slide rail assembly includes a frame-shaped rail frame (303), and a connecting block (304) is fixedly connected between the rail frame (303) and the first panel (301). The first panel (301) has adjustment grooves (305) embedded in the upper and lower parts of the surface center.

4. The tempering furnace for tempered glass with multi-zone temperature control and uniform tempering according to claim 3, characterized in that: The airflow mechanism (4) includes a first fan (401) with a fixed insertion air hole (202), and a second fan (402) with a fixed insertion air hole (202) is provided on the upper and lower sides of the first fan (401). The air outlet of the first fan (401) is fixedly connected to the air duct (403) with the air outlet end retracted. The air outlet end of the air duct (403) is movably inserted with a fan shaft (404). A first rotating fan (405) adapted to the air outlet end of the air duct (403) is fixedly sleeved on a section of the fan shaft (404) inside the air duct (403). An outer shaft (406) is slidably inserted at the end of the fan shaft (404) facing the first heating mechanism (3).

5. The tempering furnace for tempered glass with multi-zone temperature control and uniform tempering according to claim 4, characterized in that: The first panel (301) has two adjustment slots (305) symmetrically provided with air guiding mechanisms (5), the air guiding mechanism (5) includes an air duct (501), and external teeth (502) are fixedly connected at equal intervals on the outer side of the end of the air duct (501) close to the slide rail assembly. A second rotating fan (503) is fixedly inserted inside the air duct (501), and the central axis of the second rotating fan (503) is correspondingly connected to the outer axis (406) of the airflow mechanism (4). The outer side of the air duct (501) away from the slide rail assembly is movably sleeved with a cylindrical ring (504), and the side of the cylindrical ring (504) is fixedly connected with the insertion rod (505) of the sliding insertion adjustment groove (305).

6. The tempering furnace for tempered glass with multi-zone temperature control and uniform tempering according to claim 2, characterized in that: The second heating mechanism (6) includes a second panel (601) adapted to the housing (201), a second infrared quartz heating tube (602) with adjustable power is fixedly embedded on the surface of the second panel (601) facing the middle layer of the housing (201), and a power regulator (603) adapted to the embedding groove (203) is fixedly connected on the surface of the second panel (601) away from the middle layer of the housing (201). The second heating mechanism (6) includes a controller (604) fixedly connected to the outer end of the housing (201), and a control line (605) passing through the end wall of the housing (201) is fixedly connected between the controller (604) and the power regulator (603). The second heating mechanism (6) includes cylinders (606) fixed to the four corners of the outer end of the housing (201). The output end of the cylinder (606) passes through the end wall of the housing (201) and is fixed to the four corners of the second panel (601).

7. The tempering furnace for tempered glass with multi-zone temperature control and uniform tempering according to claim 3, characterized in that: The door panel mechanism (7) includes a door frame (701) installed at the port of the housing (201), and a pair of door panels (702) are vertically slidably installed inside the door frame (701). The two door panels (702) that are close to each other have door grooves (703) that are adapted to the ends of the insertion rail bracket (303) respectively.

8. The tempering furnace for tempered glass with multi-zone temperature control and uniform tempering according to claim 5, characterized in that: The protection mechanism (8) includes two cross-shaped protection frames (801) at the top and bottom. The ends of the two protection frames (801) parallel to their sliding direction are screwed together with fasteners (802). The ends of the two protection frames (801) perpendicular to their sliding direction are provided with rail grooves (803) adapted to fit the rail frame (303). The protective frame (801) has a central hole (804) through the middle of its surface. A clamping cylinder (805) is inserted into the central hole (804) through a bearing. A clamping foot (806) is fixedly connected at equal and even intervals at the end of the clamping cylinder (805) closest to the glass. A tooth groove (807) adapted to meshing external teeth (502) is opened at equal and even intervals on the outer side of the end of the clamping cylinder (805) away from the glass. A spiral blade (808) is fixedly connected at equal and even intervals on the inner wall of the clamping cylinder (805).

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